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< Page ,Total 11 >
Genetic Differentiation of Chinese Fir Populations From Mainland China and Taiwan as Revealed by Genotyping-By-Sequencing Analysis, With Implication for Taxonomic Position of the Species SCIE
期刊论文 | 2025 , 15 (4) | ECOLOGY AND EVOLUTION
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Climate change and strait isolation during the glacial period had a profound effect on the differentiation of gymnosperms on both sides of the Taiwan Strait. The taxonomic status and population structure of Cunninghamia konishii (Taiwan) and C. lanceolata (mainland China) remain contentious due to conflicting morphological and molecular evidence. Thus, we sampled 92 accessions from seven natural populations, six from mainland China and one from Taiwan, and conducted high-throughput genotyping-by-sequencing (GBS) analysis. The northern marginal population exhibited the lowest genetic diversity (theta pi = 4.828 x 10-3), while the Taiwan population had the highest (theta pi = 5.821 x 10-3), reflecting its role as a glacial refugium, while mainland populations retained lower diversity due to post-glacial bottlenecks. There was little difference in Tajima's D values of selection pressure between mainland China and Taiwan. However, significant gene flow (Nm = 2.839) was observed, combined with low FST values (0.072-0.122), which indicate low genetic differentiation among C. lanceolata and C. konishii. Migration analysis indicated a high probability of unidirectional gene flow from mainland China to Taiwan, with the Dongshan Land Bridge facilitating pre-glacial gene flow. We conclude that C. konishii represents an ecotype of C. lanceolata , shaped by environmental plasticity and incomplete isolation. This study enhances our understanding of the gene flow and evolutionary processes shaping the species and offers new insights into their taxonomic classification.

Keyword :

Chinese fir Chinese fir Genetic Diversity Genetic Diversity Genotyping by Sequencing (GBS) Genotyping by Sequencing (GBS) Population Structure Population Structure Single-Nucleotide Polymorphism (SNP) Discovery Single-Nucleotide Polymorphism (SNP) Discovery

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GB/T 7714 Zhang, Yajing , Sun, Yangyang , Zhong, Minchen et al. Genetic Differentiation of Chinese Fir Populations From Mainland China and Taiwan as Revealed by Genotyping-By-Sequencing Analysis, With Implication for Taxonomic Position of the Species [J]. | ECOLOGY AND EVOLUTION , 2025 , 15 (4) .
MLA Zhang, Yajing et al. "Genetic Differentiation of Chinese Fir Populations From Mainland China and Taiwan as Revealed by Genotyping-By-Sequencing Analysis, With Implication for Taxonomic Position of the Species" . | ECOLOGY AND EVOLUTION 15 . 4 (2025) .
APA Zhang, Yajing , Sun, Yangyang , Zhong, Minchen , Chen, Fenglin , Wang, Yaning , Tigabu, Mulualem et al. Genetic Differentiation of Chinese Fir Populations From Mainland China and Taiwan as Revealed by Genotyping-By-Sequencing Analysis, With Implication for Taxonomic Position of the Species . | ECOLOGY AND EVOLUTION , 2025 , 15 (4) .
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Differential effects of exogenous VOCs on the growth and stress responses of Cunninghamia lanceolata seedlings under low phosphorus SCIE
期刊论文 | 2025 , 25 (1) | BMC PLANT BIOLOGY
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This study investigates how exogenous volatile organic compounds (VOCs) influence the root responses of Cunninghamia lanceolata under nutrient limitations. Specifically, we assessed the differential effects of syringic acid and 1-butene on root morphology, phosphorus acquisition, and stress resilience. Clonal Chinese fir seedlings were utilized to test the effects of treatment with these two exogenous VOCs under both phosphorus supply (1.0 mM KH2PO4) and no phosphorus supply (0 mM KH2PO4) treatments in a controlled pot experiment. Compared to syringic acid, 1-butene significantly enhanced root morphological traits, including root length, specific surface area, and root volume. These morphological changes enhanced the root's ability to acquire phosphorus. Moreover, the addition of 1-butene increased the underground phosphorus use efficiency (PUE) by 25.6% compared to the addition of syringic acid. Furthermore, the addition of 1-butene stimulated higher activity of antioxidant enzymes such as superoxide dismutase (SOD) and peroxidase (POD). Proteomic analysis revealed that 1-butene induced significant changes in root protein expression, particularly in proteins associated with stress responses, phenylpropanoid biosynthesis, and phosphate transport. Compared to syringic acid, 1-butene promoted the differential expression of phosphate transporter proteins, indicating its beneficial effects on the root systems of Chinese firs under low-phosphorus stress. These findings underscore the potential of 1-butene in promoting root efficiency and phosphorus acquisition in forest species, providing insights for enhancing plant adaptation to nutrient limitations.

Keyword :

1-butene 1-butene Cunninghamia lanceolata Cunninghamia lanceolata Low P environment Low P environment Stress resistance Stress resistance Syringic acid Syringic acid Volatile organic compounds Volatile organic compounds

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GB/T 7714 Li, Yachao , Zhang, Hui , Liu, Jing et al. Differential effects of exogenous VOCs on the growth and stress responses of Cunninghamia lanceolata seedlings under low phosphorus [J]. | BMC PLANT BIOLOGY , 2025 , 25 (1) .
MLA Li, Yachao et al. "Differential effects of exogenous VOCs on the growth and stress responses of Cunninghamia lanceolata seedlings under low phosphorus" . | BMC PLANT BIOLOGY 25 . 1 (2025) .
APA Li, Yachao , Zhang, Hui , Liu, Jing , Li, Ming , Farooq, Taimoor Hassan , Ma, Xiangqing et al. Differential effects of exogenous VOCs on the growth and stress responses of Cunninghamia lanceolata seedlings under low phosphorus . | BMC PLANT BIOLOGY , 2025 , 25 (1) .
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Effects of Planting Density on Branch Development and Spatial Distribution in Two Elite Chinese Fir (Cunninghamia lanceolata (Lamb.) Hook.) Clones SCIE
期刊论文 | 2025 , 16 (1) | FORESTS
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The development of branches on the lower part of the trunk plays a decisive role in the early growth of trees and influences the wood quality of their most valuable sections. This study investigated the effects of planting density on the horizontal and vertical spatial distribution, branch morphology, and branch quantity characteristics of two elite clones of Chinese fir (Cunninghamia lanceolata (Lamb.) Hook.), Yang 061 and Yang 020. The results revealed the following distinct responses between the two clones: Yang 061 exhibited significant reductions in branch base diameter and length under a higher planting density, alongside an increased frequency of small branches (<15 mm), but there was no significant effect on branch angles. In contrast, Yang 020 was primarily influenced by genetic factors, with planting density exerting minimal impact. This clone optimized resource allocation by promoting the mortality of lower branches through angle adjustments, resulting in negligible changes to branch development across different planting densities. Pronounced differences in vertical and horizontal branch distributions were observed in areas with significant light disparities, such as the middle crown and northeast direction, for both clones, with increased planting density exacerbating these differences. In conclusion, increasing the planting density of Yang 061 from 2500 to 3333 treesha(-1) can effectively reduce its branch size; whereas, increasing the planting density of Yang 020 from 3000 to 5100 treesha(-1) can slightly decrease its branch size without affecting its early rapid growth, thereby achieving a synergistic improvement in both timber yield and quality. These findings highlight the importance of interactions between genetic traits and planting density in shaping branch development and spatial distribution patterns, providing insights to optimize planting density for improving the productivity and wood quality of Cunninghamia lanceolata plantations.

Keyword :

branch morphology branch morphology clone selection clone selection Cunninghamia lanceolata Cunninghamia lanceolata forestry management forestry management planting density planting density spatial distribution spatial distribution

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GB/T 7714 Peng, Jun , Jiang, Yuhui , Shi, Lang et al. Effects of Planting Density on Branch Development and Spatial Distribution in Two Elite Chinese Fir (Cunninghamia lanceolata (Lamb.) Hook.) Clones [J]. | FORESTS , 2025 , 16 (1) .
MLA Peng, Jun et al. "Effects of Planting Density on Branch Development and Spatial Distribution in Two Elite Chinese Fir (Cunninghamia lanceolata (Lamb.) Hook.) Clones" . | FORESTS 16 . 1 (2025) .
APA Peng, Jun , Jiang, Yuhui , Shi, Lang , Xie, Shengfang , Zhang, Xinyu , Wu, Pengfei et al. Effects of Planting Density on Branch Development and Spatial Distribution in Two Elite Chinese Fir (Cunninghamia lanceolata (Lamb.) Hook.) Clones . | FORESTS , 2025 , 16 (1) .
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From Young to Over-Mature: Long-Term Cultivation Effects on the Soil Nutrient Cycling Dynamics and Microbial Community Characteristics Across Age Chronosequence of Schima superba Plantations SCIE
期刊论文 | 2025 , 16 (1) | FORESTS
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Optimizing forest management requires a comprehensive understanding of how soil properties and microbial communities evolve across different plantation ages. This study examines variations in soil nutrient dynamics, enzyme activities, and bacterial communities in Schima superba Gardn. & Champ plantations of 10, 15, 27, 55, and 64 years. By analyzing soil from depths of 0-20 cm, 20-40 cm, and 40-60 cm, we identified significant age-related trends in soil characteristics. Notably, nutrient contents, including total organic carbon (TOC), total phosphorus (TP), total carbon (TC), total nitrogen (TN), and nitrate nitrogen (NO3--N), as well as soil water content (SWC), peaked in 55-year-old mature plantations and decreased in 64-year-old over-mature plantations. Enzyme activities, such as urease, sucrase, and acid phosphatase, decreased with soil depth and exhibited notable differences across stand ages. Microbial community analysis indicated the predominance of Acidobacteria, Chloroflexi, Proteobacteria, Actinobacteria, and Verrucomicrobiota in nutrient cycling, with their relative abundances varying significantly with age and depth. Mature and over-mature plantations exhibited higher absolute abundances of functional genes related to methane metabolism, nitrogen, phosphorus, and sulfur cycling. Reduced calcium ion levels were also linked to lower gene abundance in carbon degradation, carbon fixation, nitrogen, and phosphorus cycling, while increased TOC, NH4+-N, NO3--N, and AP correlated with higher gene abundance in methane metabolism and phosphorus cycling. Our findings suggest that long-term cultivation of Schima superba enhances soil nutrient cycling. Calcium ion was identified as a significant factor in assessing soil properties and microbial dynamics across different stand ages, suggesting that extended plantation rotations can improve soil health and nutrient cycling.

Keyword :

Calcium ions Calcium ions microbial communities microbial communities nutrient dynamics nutrient dynamics plantation development plantation development Schima superba Schima superba

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GB/T 7714 Sun, Yangyang , Zhang, Yajing , Wang, Liyan et al. From Young to Over-Mature: Long-Term Cultivation Effects on the Soil Nutrient Cycling Dynamics and Microbial Community Characteristics Across Age Chronosequence of Schima superba Plantations [J]. | FORESTS , 2025 , 16 (1) .
MLA Sun, Yangyang et al. "From Young to Over-Mature: Long-Term Cultivation Effects on the Soil Nutrient Cycling Dynamics and Microbial Community Characteristics Across Age Chronosequence of Schima superba Plantations" . | FORESTS 16 . 1 (2025) .
APA Sun, Yangyang , Zhang, Yajing , Wang, Liyan , Zhang, Xinyu , Jiang, Yuhui , Tigabu, Mulualem et al. From Young to Over-Mature: Long-Term Cultivation Effects on the Soil Nutrient Cycling Dynamics and Microbial Community Characteristics Across Age Chronosequence of Schima superba Plantations . | FORESTS , 2025 , 16 (1) .
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Provenance-Specific Height-Diameter Modeling for Chinese Fir: A Clustered Mixed-Effects Approach SCIE
期刊论文 | 2025 , 14 (9) | BIOLOGY-BASEL
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Chinese fir is the predominant afforestation species in southern China, exhibiting distinct provenances due to long-term climatic adaptation. This study utilized data from four surveys conducted at different ages in a provenance trial forest at Zhangping Wuyi Forest Farm, Fujian Province, to classify Chinese fir provenances using cluster analysis based on growth metrics. The resulting clusters were integrated as random effects into height-diameter models. Model performance was enhanced by incorporating age parameters and validated through five-fold cross-validation. The findings reveal that: (1) the Logistic model best captured the fundamental height-diameter relationship of Chinese fir; (2) the inclusion of provenance-clustering random effects improved model fit and predictive accuracy, with height-based clustering outperforming other methods; (3) the addition of age parameters further refined the base models beyond the clustering effects, and the combination of both approaches achieved the highest precision. Among clustering techniques, height-based clustering surpassed combined height-diameter at breast height (DBH) clustering, while DBH-based clustering was the least effective. The developed models facilitate precise growth predictions for multi-provenance Chinese fir across extensive geographic ranges, offering a theoretical basis for provenance-specific management.

Keyword :

cluster analysis cluster analysis height-diameter models height-diameter models mixed effects mixed effects provenances provenances

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GB/T 7714 Wu, Xiangrong , Wang, Yuhan , Lyu, Yanjuan et al. Provenance-Specific Height-Diameter Modeling for Chinese Fir: A Clustered Mixed-Effects Approach [J]. | BIOLOGY-BASEL , 2025 , 14 (9) .
MLA Wu, Xiangrong et al. "Provenance-Specific Height-Diameter Modeling for Chinese Fir: A Clustered Mixed-Effects Approach" . | BIOLOGY-BASEL 14 . 9 (2025) .
APA Wu, Xiangrong , Wang, Yuhan , Lyu, Yanjuan , Chen, Wanrong , Li, Ming , Sun, Shuaichao . Provenance-Specific Height-Diameter Modeling for Chinese Fir: A Clustered Mixed-Effects Approach . | BIOLOGY-BASEL , 2025 , 14 (9) .
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Differentiation and trade-offs of root phosphorus acquisition strategies in different phosphorus efficiency genotypes of Chinese fir SCIE
期刊论文 | 2025 | PLANT AND SOIL
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Background and AimsChinese fir (Cunninghamia lanceolata), a vital afforestation species in southern China, exhibits genotypic variations in phosphorus (P) acquisition to adapt long-term soil P deficiency environment. This study aimed to elucidate how P-efficiency genotypes balance root morphology, rhizosphere exudation, and arbuscular mycorrhizal fungi (AMF) symbiosis to optimize P acquisition under varying soil P availability.MethodsFourteen genotypes with contrasting P-use efficiencies (PUE) were subjected to low-P (5 mg/kg) and high-P (30 mg/kg) treatments, with or without AMF inoculation. Root morphological traits, exudates, AMF colonization, and carbon-phosphorus allocation were analyzed.ResultsUnder low-P, high-P-efficiency (H-PUE) genotypes increased root length and surface area, reduced root diameter, and enhanced organic acid secretion and acid phosphatase activity. AMF inoculation under low-P suppressed root proliferation in H-PUE, while decreased acid phosphatase activity and dissolved organic carbon content, but increased organic acid concentration and AMF dependency. In contrast, low-P-efficiency (L-PUE) genotypes exhibited a degree of reliance on compensatory root biomass allocation and nonspecific dissolved organic carbon exudation. Principal component analysis revealed H-PUE genotypes synergized structural-symbiotic traits (e.g., fine roots, AMF colonization), whereas L-PUE genotypes relied on rhizosphere activation through acid phosphatase secretion.ConclusionFunctional differentiation in root P-acquisition strategies among Chinese fir genotypes is driven by carbon-phosphorus allocation trade-offs, where H-PUE genotypes optimize P uptake through integrated root morphological plasticity, targeted exudation, and AMF symbiosis, thereby minimizing carbon expenditure. This study elucidates the hierarchical coordination of root morphology, mycorrhizal collaboration, and exudate-mediated rhizosphere remodeling in woody plants, and provides mechanistic criteria for breeding P-efficient varieties and managing phosphorus-limited plantations.

Keyword :

Arbuscular mycorrhizal fungi Arbuscular mycorrhizal fungi Cunninghamia lanceolate Cunninghamia lanceolate Genotypic variation Genotypic variation Phosphorus acquisition strategies Phosphorus acquisition strategies Root functional traits Root functional traits

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GB/T 7714 Li, Ming , Cao, Zhengying , Zhang, Xinyu et al. Differentiation and trade-offs of root phosphorus acquisition strategies in different phosphorus efficiency genotypes of Chinese fir [J]. | PLANT AND SOIL , 2025 .
MLA Li, Ming et al. "Differentiation and trade-offs of root phosphorus acquisition strategies in different phosphorus efficiency genotypes of Chinese fir" . | PLANT AND SOIL (2025) .
APA Li, Ming , Cao, Zhengying , Zhang, Xinyu , Chen, Fenglin , Ma, Junjiao , Wang, Zeqing et al. Differentiation and trade-offs of root phosphorus acquisition strategies in different phosphorus efficiency genotypes of Chinese fir . | PLANT AND SOIL , 2025 .
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Transcriptomic and metabolomic insights into pine wood nematode resistance mechanisms in Pinus massoniana SCIE
期刊论文 | 2025 , 45 (10) | TREE PHYSIOLOGY
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Pine wilt disease, caused by the pine wood nematode (PWN), is a devastating systemic disease with significantly impacts on pine species, particularly Pinus massoniana (Masson pine) in South China. This study integrated transcriptomic and metabolomic analyses to identify differentially expressed genes (DEGs) and differentially accumulated metabolites associated with PWN resistance. By comparing the gene expression and metabolic profiles of healthy, mechanically wounded and PWN-infected Masson pine trees at 28 days post-inoculation, we identified that 1310 DEGs were specifically associated with PWN infection after excluding mechanical damage effects. Notably, combined KEGG analysis of transcriptomic and metabolomic data revealed significant enrichment of the alpha-linolenic acid metabolism pathway. Within this pathway, genes such as AOS, LCAT3 and DAD1 exhibited differential expression patterns, highlighting its pivotal role in PWN resistance. Metabolomic analysis revealed that key genes involved in jasmonic acid (JA) biosynthesis and plant hormone signaling showing strong regulation. Additionally, Quantitative Real-Time PCR (qRT-PCR) validation of selected DEGs confirmed the expression patterns observed in the transcriptomic data. Physiological assays also validated changes in key hormone levels, such as JA and methyl jasmonate, which are upregulated in the early stages of plant infection. These results highlight the importance of JA-mediated defence responses and provide novel insights for breeding strategies to improve P. massoniana's resistance to PWN infection.

Keyword :

Alpha-linolenic acid metabolism Alpha-linolenic acid metabolism Bursaphelenchus xylophilus Bursaphelenchus xylophilus jasmonic acid (JA) jasmonic acid (JA) Masson pine Masson pine plant defence responses plant defence responses

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GB/T 7714 Hu, Xia , Wang, Shuran , Wang, Zeguang et al. Transcriptomic and metabolomic insights into pine wood nematode resistance mechanisms in Pinus massoniana [J]. | TREE PHYSIOLOGY , 2025 , 45 (10) .
MLA Hu, Xia et al. "Transcriptomic and metabolomic insights into pine wood nematode resistance mechanisms in Pinus massoniana" . | TREE PHYSIOLOGY 45 . 10 (2025) .
APA Hu, Xia , Wang, Shuran , Wang, Zeguang , Ju, Shibo , Liu, Xianghua , Li, Guoqiang et al. Transcriptomic and metabolomic insights into pine wood nematode resistance mechanisms in Pinus massoniana . | TREE PHYSIOLOGY , 2025 , 45 (10) .
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Synergistic effects of nitrogen deposition and phosphorus distribution patterns on root morphological and chemical traits, and nutrient efficiency in Chinese fir SCIE
期刊论文 | 2025 , 18 (4) | JOURNAL OF PLANT ECOLOGY
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Increasing nitrogen (N) deposition exacerbates phosphorus (P) limitations in subtropical Chinese fir plantations, yet clonal mechanisms mediating root adaptation to heterogeneous P environments remain unclear. This study investigates the growth and metabolic responses of three clones (Y061/Y020: P-efficient; Y2C: P-sensitive) under N deposition and contrasting P distributions. Elevated N deposition enhanced aboveground and belowground biomass under heterogeneous P conditions, particularly enhancing Y061's root length and surface area. Elevated N deposition significantly increased APase activity while decreasing organic acid secretion, particularly under homogeneous P-deficient conditions. Heterogeneous P supply amplified clonal divergence: P-efficient clones exhibited higher phosphorus absorption efficiency (PAE) than Y2C through root morphological plasticity, while N deposition upregulated APase activity but reduced total organic acids secretion. Metabolomic revealed N-driven shifts in exudate profiles, with lactic, malonic, succinic and oxalic acid increasing while shikimic, quinic and malic acids decreased. Notably, nitrogen absorption efficiency synergistically enhanced PAE under high N conditions. Clones Y061 and Y020 demonstrated superior N and P absorption capabilities, while clone Y2C prioritized enzymatic P mobilization in homogeneous deficiency but showed compromised growth. We demonstrate that N deposition restructures root foraging strategies along a "morphological-enzymatic" axis, where P-efficient clones exploit spatial nutrient heterogeneity through root proliferation rather than organic acid investment. These findings provide actionable solutions: (i) deploying Y061 and Y020 clones in high-N regions improves productivity and (ii) Mixed plantations mimicking heterogeneous P distribution enhance nutrient resilience. Our findings contribute to a deeper understanding of nutrient dynamics and providing targeted strategies for sustainable forestry in acidified subtropical soils.

Keyword :

APase activity APase activity nitrogen deposition nitrogen deposition nutrient interactions nutrient interactions phosphorus efficiency phosphorus efficiency root dynamics root dynamics root organic acids root organic acids

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GB/T 7714 Zhang, Ya-Jing , Si, Ya-Li , Ju, Shi-Bo et al. Synergistic effects of nitrogen deposition and phosphorus distribution patterns on root morphological and chemical traits, and nutrient efficiency in Chinese fir [J]. | JOURNAL OF PLANT ECOLOGY , 2025 , 18 (4) .
MLA Zhang, Ya-Jing et al. "Synergistic effects of nitrogen deposition and phosphorus distribution patterns on root morphological and chemical traits, and nutrient efficiency in Chinese fir" . | JOURNAL OF PLANT ECOLOGY 18 . 4 (2025) .
APA Zhang, Ya-Jing , Si, Ya-Li , Ju, Shi-Bo , Jiang, Wan-Ying , Zhao, Ming-Zhen , Liu, Jing et al. Synergistic effects of nitrogen deposition and phosphorus distribution patterns on root morphological and chemical traits, and nutrient efficiency in Chinese fir . | JOURNAL OF PLANT ECOLOGY , 2025 , 18 (4) .
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Proteome-wide lysine acetylation profiling provides insights into the involvement of acetylation in the phosphate starvation response of Chinese fir roots SCIE
期刊论文 | 2025 , 236 | INDUSTRIAL CROPS AND PRODUCTS
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Phosphorus is a crucial yet frequently limiting nutrient in forest ecosystems, particularly in rapidly growing coniferous plantations within subtropical red soil regions. Phosphorus deficiency adversely affects soil fertility and productivity, presenting a significant challenge for Chinese fir (Cunninghamia lanceolata) plantations. Despite its importance, the impact of phosphorus limitation on Chinese fir roots and the role of acetylation modifications in regulating these responses are not well understood. This study investigates the morphological and physiological effects of varying phosphorus levels on Chinese fir roots, with a focus on acetylation modifications of proteins and their regulatory functions. Our results reveal that phosphate starvation leads to significant increases in root growth rate and cell size. Physiological assessments show that under phosphorus starvation, starch, sucrose and acid phosphatase fall, while oxalic, malic, citric, succinic, tartaric and maleic acids fluctuate variably over time. Through comprehensive acetylome analysis, we identified 201 acetylation sites on 185 proteins. Further analysis through acetylation and Parallel Reaction Monitoring (PRM) techniques indicated that phosphate starvation regulates the acetylation levels of ACO, LSC, and ACLY in the TCA cycle, PFP, ENO, and HK in Glycolysis/Gluconeogenesis, as well as SnRK2, PYR/PYL, and MPK6 in the ABA metabolic pathway. These findings highlight the essential role of acetylation in modulating the adaptability of Chinese fir roots to phosphorus deficiency through influence on multiple metabolic pathways and insights into the function of acetylation modifications in plant phosphorus metabolism.

Keyword :

Acetylation Acetylation Cunninghamia lanceolata Cunninghamia lanceolata Phosphate starvation Phosphate starvation PRM PRM Proteome Proteome

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GB/T 7714 Wang, Shuran , Zhong, Minchen , Zhang, Yajing et al. Proteome-wide lysine acetylation profiling provides insights into the involvement of acetylation in the phosphate starvation response of Chinese fir roots [J]. | INDUSTRIAL CROPS AND PRODUCTS , 2025 , 236 .
MLA Wang, Shuran et al. "Proteome-wide lysine acetylation profiling provides insights into the involvement of acetylation in the phosphate starvation response of Chinese fir roots" . | INDUSTRIAL CROPS AND PRODUCTS 236 (2025) .
APA Wang, Shuran , Zhong, Minchen , Zhang, Yajing , Li, Yachao , Chen, Fenglin , Tigabu, Mulualem et al. Proteome-wide lysine acetylation profiling provides insights into the involvement of acetylation in the phosphate starvation response of Chinese fir roots . | INDUSTRIAL CROPS AND PRODUCTS , 2025 , 236 .
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低磷胁迫下杉木根系对硝态氮的响应
期刊论文 | 2025 , 45 (03) , 7-18 | 西南林业大学学报(自然科学)
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以不同杉木半同胞家系幼苗为研究材料,采用水培控制试验,设计正常供磷和低磷胁迫处理15 d后,分别在2种供磷水平下进行0.5倍、1倍、1.5倍、2倍供氮处理培养15 d,测定正常供磷和低磷胁迫下杉木幼苗响应不同强度硝态氮添加的根系形态、根系分泌、保护酶活性、氮代谢相关酶活性和氮磷代谢相关基因表达的变化,研究杉木幼苗根系对正常供磷和低磷胁迫下杉木幼苗响应不同强度硝态氮添加的适应性机制。结果表明:10号杉木家系的根系形态响应最为敏感,低磷胁迫下的高强度硝态氮添加处理显著促进了其根系增生和侧根增多。硝态氮添加能够显著缓解10号家系缺磷胁迫导致的根系P含量减少,显著增加根系酸性磷酸酶和有机酸的分泌,且根系超氧化物歧化酶、过氧化氢酶和过氧化物酶活性及丙二醛含量显著降低。此外,硝态氮添加并不能有效缓解低磷带来的氮代谢活动的减弱,低磷胁迫下,10号家系根系NR活性和NiR活性显著降低,而硝态氮添加处理的根系NR和NiR活性依旧低于正常供磷处理。qPCR分析表明,正常供磷下硝态氮添加会诱导10号家系根系ClNRT1.1、ClNIR1和ClCPR2显著下调表达来降低氮吸收和代谢,而低磷胁迫下硝态氮添加会诱导ClNIR1和ClCPR2显著上调表达来增加对硝态氮还原能力,从而提高对高氮低磷环境的适应能力。

Keyword :

低磷胁迫 低磷胁迫 杉木 杉木 根系 根系 氮磷协同 氮磷协同 硝态氮 硝态氮

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GB/T 7714 陈海姝 , 陈婉婷 , 林雅雯 et al. 低磷胁迫下杉木根系对硝态氮的响应 [J]. | 西南林业大学学报(自然科学) , 2025 , 45 (03) : 7-18 .
MLA 陈海姝 et al. "低磷胁迫下杉木根系对硝态氮的响应" . | 西南林业大学学报(自然科学) 45 . 03 (2025) : 7-18 .
APA 陈海姝 , 陈婉婷 , 林雅雯 , 赵铭臻 , 李明 . 低磷胁迫下杉木根系对硝态氮的响应 . | 西南林业大学学报(自然科学) , 2025 , 45 (03) , 7-18 .
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